The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field the orbit will be__________________?
Correct answer: D. helix
- A. a circle
- B. a spiral
- C. an ellipse
- D. helix
Explanation
The velocity component perpendicular to the field produces circular motion, while the component parallel to the field remains uniform. Combining these motions gives a helix around the magnetic-field direction. The likely wrong choice is b, because a spiral is a vague term and does not specify the uniform helical path produced here.
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About Charged Particle in a Magnetic Field
A charged particle moving through a magnetic field experiences the Lorentz force, which is perpendicular to both its velocity and the field. The motion may be circular or helical, with questions involving radius, angular frequency, time period, and work done. A stationary charge feels no magnetic force.
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